Structure–activity relationship studies of resveratrol and its analogues by the reaction kinetics of low density lipoprotein peroxidation
作者:Jin-Chun Cheng、Jian-Guo Fang、Wei-Feng Chen、Bo Zhou、Li Yang、Zhong-Li Liu
DOI:10.1016/j.bioorg.2006.04.001
日期:2006.6
was initiated either by a water-soluble initiator 2,2'-azobis(2-amidinopropane hydrochloride) (AAPH), or by cupric ion (Cu(2+)). The reaction kinetics were monitored either by the uptake of oxygen and the depletion of alpha-tocopherol (TOH) presented in the native LDL, or by the formation of thiobarbituric acid reactive substances (TBARS). Kinetic analysis of the antioxidation process demonstrates that
白藜芦醇(3,5,4'-反式三羟基二苯乙烯)是存在于葡萄和红酒中的一种天然植物抗毒素,具有多种生物活性,包括抗氧化活性。为了找到更多的活性抗氧化剂,以白藜芦醇为先导化合物,我们合成了白藜芦醇类似物,即3,4,3',4'-四羟基-反式-二苯乙烯(3,4,3',4'-THS),3 ,4,4'-三羟基-反式-二苯乙烯(3,4,4'-THS),2,4,4'-三羟基-反式-二苯乙烯(2,4,4'-THS),3,3'-二甲氧基-4,4'-二羟基-反式-二苯乙烯(3,3'-DM-4,4'-DHS),3,4-二羟基-反式-二苯乙烯(3,4-DHS),4,4'-二羟基-反式-二苯乙烯(4,4'-DHS),3,5-二羟基-反式-二苯乙烯(3,5-DHS)和2,4-二羟基-反式-二苯乙烯(2,4-DHS)。研究了白藜芦醇及其类似物对自由基诱导的人低密度脂蛋白(LDL)过氧化的抗氧化作用。过氧化可以通过水溶性引发剂2